//javascript json
let id = 55
let name = '李四'

//{"id":55,"name":"李四"}
let a = JSON.stringify({id,name})
console.log(a)

let sss  =  '{"id":55,"name":"李四"}'
console.log(sss)
let user = JSON.parse(sss)
console.log(user)
console.log(user.id)
console.log(user.name)
